From 2a188df857572a2ad238f19a2f995f315a1bb740 Mon Sep 17 00:00:00 2001
From: jsteube <jens.steube@gmail.com>
Date: Sun, 20 Nov 2016 20:58:56 +0100
Subject: [PATCH] Check fopen() return in logfile_append()

---
 src/logfile.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/logfile.c b/src/logfile.c
index 3a954b078..c8d7b9bd2 100644
--- a/src/logfile.c
+++ b/src/logfile.c
@@ -51,6 +51,13 @@ void logfile_append (hashcat_ctx_t *hashcat_ctx, const char *fmt, ...)
 
   FILE *fp = fopen (logfile_ctx->logfile, "ab");
 
+  if (fp == NULL)
+  {
+    event_log_error (hashcat_ctx, "%s: %s", logfile_ctx->logfile, strerror (errno));
+
+    return;
+  }
+
   lock_file (fp);
 
   va_list ap;